package com.example.huadi1.mapper;

import com.example.huadi1.dto.User;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Component;

import java.util.List;
public interface UserMapper {
    public List<User> allUser();
    public Integer findUserClassById(Integer id);
    public List<Integer> getStuIdByclassNum(Integer classNum);

    Integer getClassNumByStuId(Integer id);
}
